Final answer:
When processing transactions in a relational database, certain conditions must be met such as transactional integrity, support for ACID properties, and locks and concurrency control mechanisms.
Step-by-step explanation:
When processing transactions in a relational database, several conditions must be true:
- The database must be designed to enforce transactional integrity, meaning that it ensures that all changes made in a transaction are complete or none of them are.
- The database must support ACID properties, which stands for Atomicity, Consistency, Isolation, and Durability. These properties ensure that transactions are reliably processed and the data remains consistent.
- The database must have appropriate locks and concurrency control mechanisms in place to prevent conflicts when multiple transactions are accessing or modifying the same data simultaneously.